
<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">

    <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
    <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
    <!--[if lt IE 9]>
      <script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
      <script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
    <![endif]-->
    <style>
    body{
        height: 1500px;
    }
    </style>
  </head>
  <body>
    <div class="container">
        
        <nav class="navbar navbar-default" role="navigation">
            <!-- Brand and toggle get grouped for better mobile display -->
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
                    <span class="sr-only"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="#">笔记广场</a>
            </div>
        
            <!-- Collect the nav links, forms, and other content for toggling -->
            <div class="collapse navbar-collapse navbar-ex1-collapse">
                <ul class="nav navbar-nav">
                    <!-- <li class="active"><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li> -->
                </ul>
                <!-- <form class="navbar-form navbar-left" role="search">
                    <div class="form-group">
                        <input type="text" class="form-control" placeholder="Search">
                    </div>
                    <button type="submit" class="btn btn-default">Submit</button>
                </form> -->
                <ul class="nav navbar-nav navbar-right">
                    <li><a href="#">看云</a></li>
                    <li class="dropdown">
                        <!-- <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a> -->
                        <!-- <ul class="dropdown-menu">
                            <li><a href="#">Action</a></li>
                            <li><a href="#">Another action</a></li>
                            <li><a href="#">Something else here</a></li>
                            <li><a href="#">Separated link</a></li>
                        </ul> -->
                    </li>
                </ul>
            </div><!-- /.navbar-collapse -->
        </nav>
        

        
        <!-- <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
            <a class="navbar-brand" href="#">Title</a>
            <ul class="nav navbar-nav">
                <li class="active">
                    <a href="#">Home</a>
                </li>
                <li>
                    <a href="#">Link</a>
                </li>
            </ul>
        </nav>
         -->
        
        <nav class="navbar navbar-default navbar-fixed-bottom" role="navigation">
            <a class="navbar-brand" href="#">Title</a>
            <ul class="nav navbar-nav">
                <li class="active">
                    <a href="#">Home</a>
                </li>
                <li>
                    <a href="#">Link</a>
                </li>
            </ul>
        </nav>

        
        <ul class="pagination pagination-lg ">
            <li><a href="#">&laquo;</a></li>
            <li><a href="#">1</a></li>
            <li><a href="#">2</a></li>
            <li><a href="#">3</a></li>
            <li><a href="#">4</a></li>
            <li><a href="#">5</a></li>
            <li><a href="#">&raquo;</a></li>
        </ul>
        
        
        <ul class="pager">
            <li><a href="#">Previous</a></li>
            <li><a href="#">Next</a></li>
        </ul>
        
        
        <ul class="pager">
            <li class="previous"><a href="#">&larr; 上一页( •̀ ω •́ )</a></li>
            <li class="next"><a href="#">下一页✌ &rarr;</a></li>
        </ul>
        
        <button class="btn btn-primary center-block" type="button">
                Messages <span class="badge">4</span>
              </button>

              <div class="jumbotron">
                    <h1>Java</h1>
                    <p>公司的故事.</p>
                    <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a></p>
                  </div>

                  
                  <div class="alert alert-warning">
                      <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
                      <strong>Title!</strong> Alert body ...
                  </div>
                  <div class="alert alert-info">
                        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
                        <strong>Title!</strong> Alert body ...
                    </div>
                    <div class="alert alert-success">
                            <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
                            <strong>Title!</strong> Alert body ...
                        </div>
                  
                      
                        <div class="progress">
                                <div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width: 40%">
                                  <span class="sr-only">40% Complete (success)</span>
                                </div>
                              </div>
                              <div class="progress">
                                <div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100" style="width: 20%">
                                  <span class="sr-only">20% Complete</span>
                                </div>
                              </div>
                              <div class="progress">
                                <div class="progress-bar progress-bar-warning" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%">
                                  <span class="sr-only">60% Complete (warning)</span>
                                </div>
                              </div>
                              <div class="progress">
                                <div class="progress-bar progress-bar-danger" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" style="width: 80%">
                                  <span class="sr-only">80% Complete (danger)</span>
                                </div>
                              </div>
                        
                              <div class="progress">
                                    <div class="progress-bar progress-bar-striped active" role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 45%">
                                      <span class="sr-only">45% Complete</span>
                                    </div>
                                  </div>
        
    </div> 

    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
  </body>
</html>